Sophie Calle is a photographer, writer, filmmaker, exhibitionist, detective, and spy. Given her ambiguous relationship with privacy law, she’s also been called a thief and a stalker. Unfettered by public opinion and legal claims, Calle, Paris-born and now 72, insists that she’s just an artist. The protagonist of her own stories, she is both memoirist and voyeur, unsentimentally peeling back the layers of a life and urging us to peek inside. Although Calle has no formal artistic training, she does nod to the French literary movement of the 1960s, Oulipo, in the way she devises arbitrary sets of constraints and lets chance dictate the outcome. “Sophie Calle: Something Missing?” is a survey of her provocative genre-defying work. —Tracy Doyle